Improvement in modes of attaching pitmen to sickle-bars



V. COX.

Mode of attaching Pitman to Sickle Bars.

Patented Ian. 7,, 1873.

AM. PHOTO-LITNDGRAPH/G CUNI' (OSBORNES PROCESS.)

UNITED STATEs PATENT UFFIGE.

VINCENT COX, OF NEW VIENNA, OHIO.

Specification forming part of Letters Patent No. 134,519, dated January7, 1873..

"To all whom it may concern.-

Be it known that I, VINCENT 00X, of New Vienna, Clinton county, Ohio,have invented certain Improvements in Pitman Attachments to theSickle-Bar of Reapers and Mowers, of which the following is aspecification The object of my invention is to attach the pitman to thesickle-bar of reaping and mowing machines so as to hold it properly inposition and be entirely out of the way of all other parts of themachinery, easily adjusted, and readily repaired.

In order to describe my invention more fully, I will refer to theaccompanying drawing forming part of this specification.

Figure I is a plan view of a pitman and sickle-bar embodying myinvention. Fig. II is a cut sectional view of the same. Fig. III is aplan detached view of the sickle-bar. Fig. IV is a side detached view ofthe pitman.

A is apitman; B, the sickle-bar. U is a bushing, made of steel orhardened metal, which is placed in a hole made in the end of thesicklebar, and is held there securely by heating the end of saidsickle-bar until it expands. The

bushing is then placed in the hole, and when the metal cools itcontracts, and thus prevents the bushing from coming out by wear andtear. Into this bushing is introduced the pin D, which is fastened tothe pitman, and in to this pin is cut a groove, a. A set-screw, b, isthreaded into the end of the sickle-bar, which penetrates the bushing O,and fits into the groove a, thus holding the pin D in the bushing (J,and allowing it to turn freely.

The mode of bushing the hole in the sicklebar, into which the pitman-pinis introduced, is especially of great value in worn-out boxing onsickle-bars, and is at the same time cheaply and quickly performed. Themode of attaching the pitman to the sickle-bar by aid of the set-screw band groove (1 is the simplest, cheapest, and most adjustable.

Having thus fully described my invention, I desire to claim 1."Attaching and adjusting the pitman A to the sickle-bar B by aid of theset-screw b and groove to in the pin D, substantially as and for thepurpose set forth.

2'. The pitman A, attached and adjusted to the sickle-bar B,substantially as and for the purpose set forth.

VINCENT 00X.

Witnesses GEO. E. BARROW, Asa HOOK.

